John j



'J. J. ALLEY.

No. 226,150 Patented April 6,1880.

JOHN J. ALLEY, OF ALBION, MICHIGAN.

PLOW.

SPECIFICATION forming part of Letters Patent No. 226,150, dated April 6,1880.

Application filed January 8, 1880.

To all whom it may concern Be it known that I, JOHN J. ALLEY, of Albion,in the county of Calhoun and State of Michigan, have invented anImprovement in Plows, of which the following is a specification.

The nature of my invention relates to certain new and usefulimprovements in the construction of plows; and it consists in thepeculiar manner, hereinafter described, of securing the ad'ustability ofthe skeleton-beam, such beam being described in the patent to HoratioGale, N 0. 189,722, April 17, 1877.

Figure 1 is a perspective "iew of my improved plow, showing thestandard, the skeleton-beam, and the attachments securing the twotogether. Fig. 2 is a perspective of the top of the standard, showingthe radial corrugations. Fig. 3 is a plan view of the bottom of theplate which rests on top of the standard, provided with radialcorrugations. Fig. 4 shows the reverse side of plate Fig. 3. Fig. 5 is aperspective of the bottom of the plate, to which a portion of theskeleton-frame is attached.

In the accompanying drawings, which form a part of this specification, Arepresents a curved plow-standard, cast with a perforated lug, a, andwith a plate, 7), upon the top. This plate is perforated at threepoints, as shown, the center perforation being in vertical line with theperforation in the lug, side of this plate is radially corrugated fromsaid central perforation.

B is a plate provided with a central perforation, d, which, when theplate is in place, is in vertical line with the perforation e in the lugheretofore described. The lower side of this plate is flat and providedwith raised radial corrugations, as shown, which engage with the radialcorrugations on the standardplate. Through this plate there are twoslots, 0, one being near each end, and coincident with the outer holesor perforations in plate on top of the standard. The upper side of thisplate is slightly convex and provided with parallel corrugations, asshown.

and the upper G is another plate, slightly concave upon its lower face,where it is provided with parallel corrugations to engage with thesimilar corrugations on the upper side of the plate B. This plate isprovided with three slots, each of them coincident with the slots andperforations in the hereinbefore-described plates, and to it are rigidlysecured the two upper rods of the skeleton-beam, while the lower one ispivotally secured through the perforation in. the lug a.

It will be noticed that by the means herein described the outer end ofthe beam may be raised or lowered at will by first loosening the boltsD, which secure the parts together, and

elevating or depressing the end of the beam until the desired pitch isattained, when, the bolts being again tightened, the corrugationsbetween the two upper plates are compelled to rigidly engage.

To change the line of draft the bolts should be slightly loosened, whenthe end of the beam may be carried to the right or left, the perforationin the lug forming the point of radiation, when, the bolts being againtightened, the radial corrugations between the two lower plates arecompelled rigidly to engage.

What I claim as my invention is The combination, with a plow-standard,A, provided with a central perforated lug, a, and

radially-corrugated top plate, I), ha\ "ing side and centralperforations, of the plate B, having its lower face flat, radiallycorrugated, and provided with a central perforation, d, and slots 0, andits upper face convex, with parallel end corrugations, concave upperplate, (J, having end corrugations on its lower face, and a central andside slots, and the skeleton-frame attached to the standard by bolts,substantially. as described, and for the purpose set forth.

JOHN J. ALLEY.

Witnesses:

H. .S. SPRAenE, OHAs. J. HUNT.

